prematurity

noun

By · According to Wiktionary data (CC BY-SA) ·

"prematurity" is a 11-letter English headword indexed on PlainSpell.

The verdict

“prematurity” is uncommon English (frequency #80,774 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#80,774
frequency rank, English
4,417
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The condition of (a baby, etc.) being premature.

Corpus desk

Index EN-prematurity · prematurity · English

prematurity · rank #80,774 · 0 variants · 0 confusables

  • FREQ-RARE #80,774
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH prettiness

Nearest frequency peer: prettiness (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “prematurity”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “prematurity” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for prematurity
PropertyValue
Headwordprematurity
LanguageEnglish
Part of speechNoun
Letters11
Frequency rank#80,774
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “prematurity” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).prematurityfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “prettiness” (#80,775), “praline” (#80,772), “potentiometer” (#80,771). Among 4,417 “P” headwords, “prematurity” is #80,774. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

prematurity is uncommon English at frequency #80,774 among 4,417 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for prematurity, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From premature + -ity. The correct English form is prematurity, spelled P-R-E-M-A-T-U-R-I-T-Y.

Definition

  1. 1
    The condition of (a baby, etc.) being premature.
  2. 2
    Something that is premature or occurs prematurely.

Recorded use

Wiktionary examples

These source excerpts show how prematurity appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The questions of prematurity and low birth weight and the implications for later development are consistent with the theme of risk and vulnerability discussed throughout the book.
  2. Apnea of prematurity represents a striking disorder of respiratory control.

Etymology

From premature + -ity.

Synonyms

prematurenessearliness

This word in other languages

prématurité(Français)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "prematurity"?
"prematurity" is spelled P-R-E-M-A-T-U-R-I-T-Y.
What does "prematurity" mean?
As a noun, "prematurity" means: The condition of (a baby, etc.) being premature.
What is the origin of the word "prematurity"?
From premature + -ity. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "prematurity", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

proofreader#80,778photocopier#80,754pericardial#80,750reverential#80,814

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list